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39
40#ifndef QGSTREAMERVIDEOWIDGET_H
41#define QGSTREAMERVIDEOWIDGET_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <private/qgsttools_global_p.h>
55#include <qvideowidgetcontrol.h>
56
57#include "qgstreamervideorendererinterface_p.h"
58#include <private/qgstreamerbushelper_p.h>
59#include <private/qgstreamervideooverlay_p.h>
60
61QT_BEGIN_NAMESPACE
62
63class Q_GSTTOOLS_EXPORT QGstreamerVideoWidget;
64
65class Q_GSTTOOLS_EXPORT QGstreamerVideoWidgetControl
66 : public QVideoWidgetControl
67 , public QGstreamerVideoRendererInterface
68 , public QGstreamerSyncMessageFilter
69 , public QGstreamerBusMessageFilter
70{
71 Q_OBJECT
72 Q_INTERFACES(QGstreamerVideoRendererInterface QGstreamerSyncMessageFilter QGstreamerBusMessageFilter)
73public:
74 explicit QGstreamerVideoWidgetControl(QObject *parent = 0, const QByteArray &elementName = QByteArray());
75 virtual ~QGstreamerVideoWidgetControl();
76
77 GstElement *videoSink() override;
78 void setVideoSink(GstElement *) override;
79
80 QWidget *videoWidget() override;
81
82 void stopRenderer() override;
83
84 Qt::AspectRatioMode aspectRatioMode() const override;
85 void setAspectRatioMode(Qt::AspectRatioMode mode) override;
86
87 bool isFullScreen() const override;
88 void setFullScreen(bool fullScreen) override;
89
90 int brightness() const override;
91 void setBrightness(int brightness) override;
92
93 int contrast() const override;
94 void setContrast(int contrast) override;
95
96 int hue() const override;
97 void setHue(int hue) override;
98
99 int saturation() const override;
100 void setSaturation(int saturation) override;
101
102 bool eventFilter(QObject *object, QEvent *event) override;
103
104signals:
105 void sinkChanged();
106 void readyChanged(bool);
107
108private Q_SLOTS:
109 void onOverlayActiveChanged();
110 void onNativeVideoSizeChanged();
111
112private:
113 void createVideoWidget();
114 void updateWidgetAttributes();
115
116 bool processSyncMessage(const QGstreamerMessage &message) override;
117 bool processBusMessage(const QGstreamerMessage &message) override;
118
119 QGstreamerVideoOverlay m_videoOverlay;
120 QGstreamerVideoWidget *m_widget = nullptr;
121 bool m_stopped = false;
122 WId m_windowId = 0;
123 bool m_fullScreen = false;
124};
125
126QT_END_NAMESPACE
127
128#endif // QGSTREAMERVIDEOWIDGET_H
129

source code of qtmultimedia/src/gsttools/qgstreamervideowidget_p.h